Malicious PDF — malware analysis report

Static analysis result for SHA-256 06374ac2e5f0fe7b…

MALICIOUS

PDF

80.3 KB Created: 2021-02-27 10:27:36 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 1dae0b6129267431b716f5421b2f0c36 SHA-1: 2f8ba6798a1896df641cf852c164f1c7339d9009 SHA-256: 06374ac2e5f0fe7ba94c541d446ff3f80d2e96c55f861f08cf0686f27d2f8c39
134 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://resalured.ru/123?utm_term=which+elements+only+have+two+valence+electrons PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4386084/normal_5fe8b2c62bd93.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4469106/normal_5fffce5c4ae7b.pdfIn PDF document text
    • http://lifegirls.site/avengers_movies_in_tamil_freesinuc.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4381539/normal_602aa688f2313.pdfIn PDF document text
    • https://butiriretife.weebly.com/uploads/1/3/2/6/132681404/viroro-redibepobo.pdfIn PDF document text
    • https://xubivotalo.weebly.com/uploads/1/3/0/7/130775972/fegewig.pdfIn PDF document text
    • http://bionatur.space/how_to_use_splat_hair_dye_for_highlightsobqq9.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4472188/normal_5fdeb4b0c9884.pdfIn PDF document text
    • http://raifaisentapp.online/48949060821m5s0w.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4495988/normal_5fc805c86e74a.pdfIn PDF document text
    • http://olipaka.xyz/marvelous_meaning_in_kannada95rze.pdfIn PDF document text
    • https://rolobidixogiru.weebly.com/uploads/1/3/1/6/131637372/1869943.pdfIn PDF document text
    • http://pribor-poverka.site/sipovijabopizovuwetup2du5d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4495254/normal_602892af8b36d.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4464072/normal_5ff05c8c76388.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4469386/normal_601376ed8e8ad.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4406213/normal_6009d9c5605f8.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://nixomirorubu.myartsonline.com/how_to_change_a_car_alarm_remote_battery.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000fd17.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFD17 5308 bytes
SHA-256: 66e8b3c77eea18d5eddca59a0ccc0cec3b78d11a745b941e91c90c109b501046
font_01_sfnt_off00010f17.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10F17 10832 bytes
SHA-256: a352d3314b26468819d58bf8b4a6248828010ac5cdcc6c539448d2649caa1a77

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